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Cheap flights from Sioux Falls to London from £263

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
13 Mar — 20 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sioux Falls to London

Enter your travel dates to find the best prices.

Cheapest flights from Sioux Falls to London
Explore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 February 2026.

Wed 22/416:57
FSD
-
LHR
1 stop13h 23m
United Airlines
Wed 29/406:55
LHR
-
FSD
2 stops20h 54m
United Airlines
Deal found 10/2£475
Tue 8/913:45
FSD
-
LHR
1 stop13h 55m
United Airlines
Tue 22/906:55
LHR
-
FSD
2 stops19h 51m
United Airlines
Deal found 9/2£482
Wed 8/418:35
FSD
-
LHR
2 stops15h 05m
Lufthansa
Sat 18/407:25
LHR
-
FSD
2 stops20h 24m
Lufthansa
Deal found 9/2£491
Tue 6/1013:45
FSD
-
LHR
1 stop13h 55m
United Airlines
Fri 16/1017:40
LHR
-
FSD
2 stops33h 06m
United Airlines
Deal found 9/2£492
Wed 13/511:25
FSD
-
LHR
1 stop16h 15m
United Airlines
Tue 19/511:05
LHR
-
FSD
1 stop16h 42m
United Airlines
Deal found 10/2£495
Wed 25/305:45
FSD
-
LHR
1 stop22h 55m
United Airlines
Wed 1/407:25
LHR
-
FSD
2 stops19h 05m
United Airlines
Deal found 8/2£500
Tue 6/1013:33
FSD
-
LHR
1 stop15h 22m
Multiple Airlines
Fri 16/1013:10
LHR
-
FSD
1 stop15h 07m
Multiple Airlines
Deal found 9/2£503
Wed 22/419:39
FSD
-
LGW
2 stops33h 11m
Iberia
Wed 29/420:40
LGW
-
FSD
2 stops32h 31m
Iberia
Deal found 10/2£578
Tue 8/912:48
FSD
-
LGW
2 stops16h 02m
Iberia
Tue 22/920:40
LGW
-
FSD
2 stops33h 11m
Iberia
Deal found 9/2£584
Tue 24/212:03
FSD
-
LGW
2 stops35h 57m
Multiple Airlines
Mon 2/314:00
LGW
-
FSD
1 stop27h 12m
Multiple Airlines
Deal found 10/2£590
Wed 22/418:35
FSD
-
LCY
2 stops17h 20m
Lufthansa
Wed 29/409:15
LCY
-
FSD
2 stops18h 34m
Lufthansa
Deal found 10/2£598
Thu 14/511:24
FSD
-
LCY
2 stops15h 16m
Lufthansa
Tue 19/509:15
LCY
-
FSD
2 stops17h 05m
Lufthansa
Deal found 9/2£614

Find flight deals from Sioux Falls to London

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 February 2026.

Round-trip from

£475

One-way from

£263
United Airlines
  • United Airlines
  • 22/4-29/4
  • 3 total stops
  • 34h 17m total
  • Sioux Falls to London
Search Deals
23/4
  • 23/4
  • 2 total stops
  • 38h 45m total
  • Sioux Falls to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sioux Falls to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 February 2026.
Use the filters below to find and compare flights from Sioux Falls to London that are best for you.

Fly from

Sioux Falls

Fly to

London

Route

Depart

Return

Price

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 22/4

16:57-12:20

1 stop13h 23m

London Heathrow

Wed 29/4

06:55-21:49

2 stops20h 54m

£475

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 1/5

05:10-06:25

1 stop19h 15m

London Heathrow

Thu 7/5

09:55-19:26

2 stops15h 31m

£511

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 1/5

13:35-12:20

1 stop16h 45m

London Heathrow

Fri 8/5

06:50-10:42

2 stops33h 52m

£511

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 1/5

11:24-06:45

1 stop13h 21m

London Heathrow

Thu 7/5

06:50-21:47

2 stops20h 57m

£511

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 8/4

07:39-06:45

1 stop17h 06m

London Heathrow

Sat 18/4

14:05-17:44

2 stops33h 39m

£517

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 30/4

13:35-12:20

1 stop16h 45m

London Heathrow

Mon 4/5

17:50-21:47

2 stops33h 57m

£520

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Wed 22/4

19:39-10:50

2 stops33h 11m

London Gatwick

Wed 29/4

20:40-23:11

2 stops32h 31m

£578

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Tue 24/2

12:03-06:00

2 stops35h 57m

London Gatwick

Mon 2/3

14:00-11:12

1 stop27h 12m

£590

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Wed 22/4

18:35-17:55

2 stops17h 20m

London City

Wed 29/4

09:15-21:49

2 stops18h 34m

£598

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Thu 14/5

11:24-08:40

2 stops15h 16m

London City

Tue 19/5

09:15-20:20

2 stops17h 05m

£614

Flights are sorted by cheapest return flights first.

Deals found on 8/2

Showing 1-10 of 38 results
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Best time to book a flight from Sioux Falls to London

Have a flexible travel schedule? Discover the best time to fly to London from Sioux Falls with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to London

What is the cheapest month to book a flight from Sioux Falls to London?

Currently, March is the cheapest month in which you can book a flight from Sioux Falls to London (average of £440). Flying from Sioux Falls to London in April is currently the most expensive (average of £738). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What’s the top stopover airport for flights from Sioux Falls to London?

Share of one-stop return flights from Sioux Falls to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Minneapolis (MSP) – chosen by Cheapflights users on 67% of one-stop itineraries from Sioux Falls to London on Cheapflights.

What’s the cheapest stopover airport for flights from Sioux Falls to London?

Average return fare for one-stop flights from Sioux Falls to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Chicago (ORD) is the most affordable one-stop option, with an average return flight price of £546.

What’s the fastest stopover option from Sioux Falls to London?

Shortest average travel time for one-stop one-way flights from Sioux Falls to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for one-stop routes: 10h 30m.

Which airport typically offers the quickest stopover for flights from Sioux Falls to London?

Average stopover duration for one-stop one-way flights from Sioux Falls to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average stopover time of 1h 28m.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sioux Falls to London?

    For a flight from Sioux Falls to London, you will be flying from Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city. Joe Foss Field is the only Sioux Falls airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Sioux Falls Joe Foss Field on a regular basis.

  • How long is the flight from Sioux Falls to London?

    For as low as £475, United Airlines can have you in London from Sioux Falls in 13h 23m. The distance from Sioux Falls to London is about 4189 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Sioux Falls to London?

    The most popular route from Sioux Falls to London is Sioux Falls Joe Foss Field - London Heathrow. You may also consider Sioux Falls Joe Foss Field - London City or Sioux Falls Joe Foss Field - London Gatwick.

  • Can I find deals for flights from Sioux Falls to London that include hotel bookings?

    Yes. In addition to deals on Sioux Falls to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sioux Falls to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to London.

  • Can I find deals for business class flights from Sioux Falls to London?

    Yes. Cheapflights offers flight deals from Sioux Falls to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sioux Falls to London?

    Currently, March is the cheapest month in which you can book a flight from Sioux Falls to London (average of £440). Flying from Sioux Falls to London in April is currently the most expensive (average of £738). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

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Alternative routes for Sioux Falls to London

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Heathrow flights
Rapid City to Heathrow flights
Sioux Falls to Gatwick flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Sioux Falls to London?

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Why should you use Cheapflights to find cheap flight tickets from Sioux Falls to London?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sioux Falls to London for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Sioux Falls to London with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sioux Falls to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sioux Falls to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Sioux Falls today and book when prices fit your budget.

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